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What is the mass number of an atom that has 12 neutrons and 11 protons?
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What is the mass number of an atom that has 12 neutrons and 11 protons?

User Wilmerton
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2 Answers

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Answer:

23

Step-by-step explanation:

User Zylenv
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2 votes
Mass number = protons + neutrons. 12 + 11 = 23.
User Redlightbulb
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